Description:The University of Sciences and Arts of Chiapas (Universidad de Ciencias y Artes de Chiapas, UNICACH) is in charge of the monitoring of El Chichón and Tacaná volcanoes. In 2004 UNICACH signed a collaboration agreement for the seismic and volcanic monitoring for disaster prevention with the Secretary of Security and Civil Protection, the Subsecretary of Civil Protection of the Government of Chiapas and the National Center for Disaster Prevention (CENAPRED). As a result of this agreement, el Centro de Monitoreo Vulcanológico y Sismológico de Chiapas was created at UNICACH. Since then, all these institutions have collaborated to develop the monitoring network of El Chichón and Tacaná volcanoes.

These broadband stations were installed in March 2012 and the signals are received in real time at Centro de Monitoreo Vulcanológico y Sismológico de Chiapas in Tuxtla Gutiérrez, Chiapas.

GeochemistryThe geochemistry monitoring at El Chichón volcano has been conducted constantly and permanently. The Crater Lake is sampled three or four times per year including pH and temperature measurements. Chemical analyses in the laboratory are performed by atomic absorption spectrophotometry at the Geochemistry Laboratory of the Institute of Geophysics, UNAM and with ICP equipment at the Laboratory of Earth Sciences and Environment, UNICACH. Chemical analysis includes sulfates, chloride, fluoride, boron, carbonate, bicarbonate, calcium, magnesium, sodium and iron.

These broadband stations were installed in March 2012 replacing short-period stations and the signals are received in real time at Centro de Monitoreo Vulcanológico y Sismológico de Chiapas in Tuxtla Gutiérrez, Chiapas.